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Nevin Manimala Statistics

An exploratory prospective study of the factors associated with adverse health outcomes in older adults living with HIV

Medwave. 2023 Mar 8;23(2). doi: 10.5867/medwave.2023.02.2613.

ABSTRACT

OBJECTIVE: This study examines the clinical and sociodemographic factors associated with adverse health outcomes (falls, emergency room visits, hospital admissions and death) in a cohort of patients older than 55 years with HIV infection.

METHODS: It is an exploratory prospective study with four years follow-up. People with HIV infection followed in the infectious diseases consultation unit of two hospitals in Madrid were included. Sociodemographic data and clinical variables were collected. The functional, mental, and social situations of the participants were assessed. Patient clinical histories were reviewed to gather data on the number of falls, visits to emergency departments and hospital admissions during the period studied.

RESULTS: One hundred seventeen patients with a mean age of 61,4 (SD 6,6) years and a median follow-up of 47 months(35 to 50) were included. Of these subjects, 25% had depressive symptoms, and 10% had some degree of cognitive impairment at the baseline visit. The recorded frequencies were: falls 7,7%, visits to the emergency room 53%, hospital admission 33,3% and deaths 2,6%. Depressive symptoms were associated with falls and emergency room visits in the univariate analysis. The factors associated with hospital admission were having acquired the infection through intravenous drug use, frailty and being under 65 years of age. Multivariate analysis was conducted for the hospital admissions outcome, with the variables showing p < 0,07 in the univariate analysis, none of which reached statistical significance.

CONCLUSIONS: Depression screening and cognitive evaluation should be done systematically in this population group. More studies with more patients and longer follow-up times are necessary.

PMID:36947704 | DOI:10.5867/medwave.2023.02.2613

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Nevin Manimala Statistics

Analysis of the relationship between early serum phosphate levels and short-term mortality in septic patients: A retrospective study based on MIMIC-IV

Shock. 2023 Mar 23. doi: 10.1097/SHK.0000000000002119. Online ahead of print.

ABSTRACT

OBJECTIVE: To explore the impact of early serum phosphate levels on the prognosis of critically ill patients with sepsis.

METHODS: In this retrospective large cohort study, data of patients with sepsis were obtained from the Medical Information Mart for Intensive Care (MIMIC)-IV database. Patients were retrospectively divided into a control group and three study groups according to their daily serum phosphate levels within two days of ICU admission. A Cox regression model was used to evaluate the association between serum phosphate levels and 28-day morbidity.

RESULTS: This study included 9691 patients diagnosed with sepsis. During the first two days of ICU admission, patients with hyperphosphatemia in either of the two days had higher 28-day mortality, while patients in the hypophosphatemia group had lower 28-day mortality (first day,32.9%vs16.3%; second day, 36.3%vs14.7%). After adjusting for potential confounders, hyperphosphatemia was significantly associated with 28-day mortality; however, only hypophosphatemia on the second day was independently associated with reduced 28-day mortality. After stratification in the hypophosphatemia group, subgroup analysis showed that only the association between the mild hypophosphatemia group and 28-day mortality reached statistical significance (HR = 0.76, 95% CI 0.65 to 0.89, p = 0.001).

CONCLUSION: Mild hypophosphatemia might improve the short-term prognosis of patients with sepsis, and hyperphosphatemia is an independent risk factor for the outcomes of septic patients. After ICU admission, the serum phosphate levels on the second day had a better independent correlation with 28-day mortality, which prompted us to reconsider the optimal timing of phosphate evaluation.

PMID:36947698 | DOI:10.1097/SHK.0000000000002119

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Nevin Manimala Statistics

Improving screening of prediabetes and undiagnosed diabetes

J Am Assoc Nurse Pract. 2023 Mar 22. doi: 10.1097/JXX.0000000000000843. Online ahead of print.

ABSTRACT

BACKGROUND: Type II diabetes mellitus is a chronic medical condition affecting societies worldwide. The duration of hyperglycemia is a strong predictor of adverse outcomes and imposes immense clinical and public health concerns. The best way to prevent complications and reduce the economic burden is by capturing asymptomatic individuals early in the disease process.

LOCAL PROBLEM: Patients at a large urban academic medical center were not consistently identified as having a high risk of hyperglycemia.

METHODS: The project used a pretest-posttest design. Retrospective data on new-onset hyperglycemia incidence were compared for all individuals seeking primary care services 6 weeks before and after the intervention.

INTERVENTION: Patients without a known hyperglycemia history were provided the screening tool to determine risk status. Additional screening measures were implemented for patients identified as high risk on the initial screening.

RESULTS: A total of 52 (61.6%) of the 84 individuals who met inclusion criteria during the intervention period were diagnosed with new-onset chronic hyperglycemia. In contrast, 20 (22.5%) of the 89 individuals identified during the retrospective period resulted in a statistically significant difference (p < .001) in the frequency and accuracy of patients diagnosed with hyperglycemia between groups.

CONCLUSION: A diabetes risk assessment tool is quick and reliable in capturing high-risk individuals who would benefit from additional screening measures.

PMID:36947689 | DOI:10.1097/JXX.0000000000000843

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Nevin Manimala Statistics

Associations of polygenic risk scores for preeclampsia and blood pressure with hypertensive disorders of pregnancy

J Hypertens. 2023 Mar 1;41(3):380-387. doi: 10.1097/HJH.0000000000003336. Epub 2022 Dec 16.

ABSTRACT

BACKGROUND: Preexisting hypertension increases risk for preeclampsia. We examined whether a generic blood pressure polygenic risk score (BP-PRS), compared with a preeclampsia-specific polygenic risk score (PE-PRS), could better predict hypertensive disorders of pregnancy.

METHODS: Our study sample included 141 298 genotyped FinnGen study participants with at least one childbirth and followed from 1969 to 2021. We calculated PRSs for SBP and preeclampsia using summary statistics for greater than 1.1 million single nucleotide polymorphisms.

RESULTS: We observed 8488 cases of gestational hypertension (GHT) and 6643 cases of preeclampsia. BP-PRS was associated with GHT [multivariable-adjusted hazard ratio for 1SD increase in PRS (hazard ratio 1.38; 95% CI 1.35-1.41)] and preeclampsia (1.26, 1.23-1.29), respectively. The PE-PRS was also associated with GHT (1.16; 1.14-1.19) and preeclampsia (1.21, 1.18-1.24), but with statistically more modest magnitudes of effect (P = 0.01). The model c-statistic for preeclampsia improved when PE-PRS was added to clinical risk factors (P = 4.6 × 10-15). Additional increment in the c-statistic was observed when BP-PRS was added to a model already including both clinical risk factors and PE-PRS (P = 1.1 × 10-14).

CONCLUSION: BP-PRS is strongly associated with hypertensive disorders of pregnancy. Our current observations suggest that the BP-PRS could capture the genetic architecture of preeclampsia better than the current PE-PRSs. These findings also emphasize the common pathways in the development of all BP disorders. The clinical utility of a BP-PRS for preeclampsia prediction warrants further investigation.

PMID:36947680 | DOI:10.1097/HJH.0000000000003336

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Nevin Manimala Statistics

The frequency of psychiatric disorder co-morbidities in patients with fibromyalgia: A cross-sectional study in Iran

Nurs Open. 2023 Mar 22. doi: 10.1002/nop2.1731. Online ahead of print.

ABSTRACT

AIM: This study aimed to investigate psychiatric disorders in Iranian female patients with fibromyalgia (FM).

DESIGN: Female patients, newly diagnosed with FM, were interviewed by a psychiatrist for psychiatric assessments during a 2-year period.

METHODS: The diagnosis of the psychiatric disorders was based on the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), and sleep quality was evaluated using the Pittsburgh Sleep Quality Index (PSQI).

RESULTS: In total, 159 patients with the mean age of 42.15 ± 9.89 were recruited in this study. Over 92% of the cases were also diagnosed with at least one type of psychiatric disorder. Sleep disorders (SDs, 90.57%), mood disorders (MDs, 52.83%), personality disorders (PDs, 40.25%) and anxiety disorders (ADs, 16.98%) were the most prevalent diagnoses among these patients. The logistic regression results correspondingly showed that suffering from Cluster-B PDs was associated with a higher prevalence rate of somatic symptom disorders (SSDs), with a p-value of 0.019 and an odds ratio (OR) of 2.7.

PMID:36947671 | DOI:10.1002/nop2.1731

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Nevin Manimala Statistics

Hirshfeld Atom Refinement of Metal-Organic Complexes: Treatment of Hydrogen Atoms Bonded to Transition Metals

J Phys Chem A. 2023 Mar 22. doi: 10.1021/acs.jpca.2c06998. Online ahead of print.

ABSTRACT

Hydrogen positions in hydrides play a key role in hydrogen storage materials and high-temperature superconductors. Our recently published study of five crystal structures of transition-metal-bound hydride complexes showed that using aspherical atomic scattering factors for Hirshfeld atom refinement (HAR) resulted in a systematic elongation of metal-hydrogen bonds compared to using spherical scattering factors with the Independent Atom Model (IAM). Even though only standard-resolution X-ray data was used, for the highest-quality data, we obtained excellent agreement between the X-ray and the neutron-derived bond lengths. We present an extended version of this study including 10 crystal structures of metal-organic complexes containing hydrogen atoms bonded to transition-metal atoms for which both X-ray and neutron data are available. The neutron structures were used as a benchmark, and the X-ray structures were refined by applying Hirshfeld atom refinement using various basis sets and DFT functionals in order to investigate the influence of the technical aspects on the length of metal-hydrogen bonds. The result of including relativistic effects in the Hamiltonian and using a cluster of multipoles simulating interactions with a crystal environment during wave function calculations was examined. The effect of the data quality on the final result was also evaluated. The study confirms that a high quality of experimental data is the key factor allowing us to obtain significant improvement in transition metal (TM)-hydrogen bond lengths from HAR in comparison with the IAM. Individual adjustments and better choices of the basis set can improve hydrogen positions. Average differences between TM-H bond lengths obtained with various DFT functionals upon including relativistic effects or between double-ζ and triple-ζ basis sets were not statistically significant. However, if all bonds formed by H atoms were considered, significant differences caused by different refinement strategies were observed. Finally, we examined the refinement of atomic thermal motions. Anisotropic refinement of hydrogen thermal motions with HAR was feasible only in some cases, and isotropically refined hydrogen thermal motions were in similar agreement with neutron values whether obtained with HAR or with the IAM.

PMID:36947670 | DOI:10.1021/acs.jpca.2c06998

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Nevin Manimala Statistics

Predictive Value of Endometrial Receptivity for Pregnancy Outcomes of In-vitro Fertilization Embryo Transfer for Patients of Different Ages

Altern Ther Health Med. 2023 Mar 23:AT7783. Online ahead of print.

ABSTRACT

CONTEXT: In recent years, the number of women with unexplained infertility has increased, and clinicians consider poor endometrial receptivity (ER) to be one of the main reasons. ER can have great predictive value for in-vitro fertilization embryo transfer (IVF-ET)-induced pregnancy.

OBJECTIVE: The study intended to investigate the predictive value of ER-endometrial thickness (EMT) and type and hemodynamic parameters-using color-doppler ultrasound on the pregnancy outcome of IVF-ET for women of different ages.

DESIGN: The research team performed a prospective controlled study.

SETTING: The study took place at the Department of Reproductive Medicine at Hebei Reproductive Hospital in Shijiazhuang, China.

PARTICIPANTS: Participants were 841 infertile patients undergoing IVF-ET treatment at the hospital between March 01, 2018 and December 30, 2018. The research team divided participants into two groups: (1) participants diagnosed as having a clinical pregnancy after IVF-ET became the pregnancy group, with 439 participants, and (2) participants who didn’t become pregnant became the nonpregnancy group, with 402 participants.

OUTCOME MEASURES: The research team: (1) measured EMT, (2) determined endometrium types, (3) classified the intimal and subintimal blood flow, and (4) determined the hemodynamic parameters of the endometrium and subendometrium. The team also measured: (1) the systolic blood flow velocity (VS), (2) diastolic blood flow velocity (VD), and (3) average blood flow velocity (VM) three times and recorded the average value.

RESULTS: Statistically significant differences existed in the pregnancy and implantation rates among the different age groups for the groups with EMTs of <8 mm and 8-13 mm (P < .05). The results were similar in the endometrial Type A and endometrial Type B groups as well as between the endometrial blood flow Type 1 and Type 2 groups (P < .05). The distribution of endometrial blood flow types was significantly different between the groups (P = .002). In addition, statistically significant differences existed in the implantation rates between the <30 years and 30-34 groups in different blood-flow-type groups (P < .05). Based on the results of the ROC curve, high-quality embryos (0.566, 95%CI: 0.527-0.605) and endometrial blood flow types (0.554, 95%CI: 0.515-0.593) could not predict clinical pregnancy.

CONCLUSIONS: The pregnancy and implantation rates increased between the <30 and 30-34 age groups and them decreased between the age groups as age increased. EMT, endometrial type, and blood flow type can be valuable parameters in predicting the implantation and pregnancy rates of patients of different ages.

PMID:36947655

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The Safety of Neoadjuvant Therapy with Polyethylene Glycol Liposome Adriamycin Combined with Docetaxel in Patients with Breast Cancer Complicated by Axillary Lymph Node Metastasis

Altern Ther Health Med. 2023 Mar 23:AT7976. Online ahead of print.

ABSTRACT

OBJECTIVE: To evaluate the safety of the combination of pegylated liposomal doxorubicin and docetaxel in neoadjuvant therapy for breast cancer (BC) with axillary lymph nodes metastasis.

METHODS: In this single-arm study, 91 patients with clinical stage IIA-IIIc BC received 6 cycles of pegylated liposomal doxorubicin plus docetaxel as neoadjuvant chemotherapy (NAC). Trastuzumab was allowed in patients with human epidermal growth factor receptor 2-positive tumors. The effects of new anthracycline-polyethylene glycol liposomal doxorubicin on the patients’ hearts were studied. The changes in left ventricular ejection fraction (LVEF) before and after treatment were evaluated by echocardiography, and the levels of cardiac-specific biomarker troponin I (cTnI) and N terminal B natriuretic peptide (NT-pro-BNP) were noted before and after treatment.

RESULT: In our study, 88 patients completed 6 cycles of neoadjuvant chemotherapy. LVEF was within normal range; average LVEF was 67% at baseline, 66% after NAC. The difference was not statistically significant. However, LVEF decreased by more than 10% in 44.4% of patients. There was no significant difference in troponin I or NT-pro-BNP levels before or after treatment. No cardiac events with clinical symptoms were reported.

CONCLUSION: The combination of polyethylene glycol liposome adriamycin and docetaxel in neoadjuvant chemotherapy in patients with early BC with axillary lymph node metastasis has certain cardiac safety. And in the human epidermal growth factor receptor-2 (HER-2) positive population, polyethylene glycol liposome adriamycin combined with docetaxel and trastuzumab also has certain cardiac safety.

PMID:36947649

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Nevin Manimala Statistics

Response by Su and Ye to Letter Regarding Article, “Association Between Serum Bilirubin, Lipid Levels, and Prevalence of Femoral and Carotid Atherosclerosis: A Population-Based Cross-Sectional Study”

Arterioscler Thromb Vasc Biol. 2023 Apr;43(4):e123. doi: 10.1161/ATVBAHA.123.319052. Epub 2023 Mar 22.

NO ABSTRACT

PMID:36947607 | DOI:10.1161/ATVBAHA.123.319052

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Nevin Manimala Statistics

Age-dependent changes in the anatomical and histological characteristics of the aggregated lymphoid nodules in the stomach of Dromedary camels (Camelus Dromedarius)

PLoS One. 2023 Mar 22;18(3):e0279417. doi: 10.1371/journal.pone.0279417. eCollection 2023.

ABSTRACT

Gastrointestinal associated lymphoid tissue (GALT) is an important component of the mucosal immune system. It is the largest mass of lymphoid tissues in the body and makes up more than 70% immune cells of entire body. GALT is considered to be the origin of systemic mucosal immunity and consists of solitary lymphoid nodules, aggregated lymphoid nodules (Peyer’s patches, PPs), scattered lymphoid tissues, and follicular associated epithelia. PPs play important roles as antigen inductive sites of the mucosal immune system, which are mainly distributed in the intestine of animals and humans (especially ileum and appendix). However, a special area of well-developed aggregated lymphoid nodules in the abomasum of Dromedary camel was found in our laboratory. Its existence was rarely described in the stomach before. In the present study, we investigated this special structure with the dromedary camels of different ages (young, 0.5-2 years; pubertal, 3-5 years; middle-aged, 6-16 years; old, 17-20 years), by the anatomical, histological and immunohistochemical approaches. The results showed that the special structure was mainly distributed in the cardiac glandular area of the abomasum, forming a triangular area. The mucosal folds in this area were significantly thicker than those in the surrounding region. These mucosal folds had two different forms, namely reticular mucosal folds (RMF) and longitudinal mucosal folds (LMF). There were abundant lymphoid nodules in the submucosa of RMF and LMF, which were arranged in one or multiple rows. The statistical analysis of the height and thickness of RMF and LMF showed that the structure was most developed in pubertal dromedary camels. The histological characteristics of the structure were the same as PPs in the intestine of the Dromedary camel, while anatomical appearance showed some difference. The immunohistochemical examination revealed that both immunoglobulin A (IgA) and G (IgG) antibodies-producing cells (APCs) were extensively distributed in the gastric lamina propria (LP) in all age group. Our finding suggest that camel stomach not only performs digestive functions, but also involves parts of body immunity.

PMID:36947571 | DOI:10.1371/journal.pone.0279417