Effects of groundwater depth on groundwater recharge and soybean growth dynamics in Northeast China Plain.

To explore the groundwater recharge rate and soybean growth dynamics under different groundwater depths, we conducted a field experiment with four groundwater depth treatments (1 m, D1; 2 m, D2; 3 m, D3; 4 m, D4) through the groundwater simulation system in 2021 and 2022 and explored the relationships between groundwater depth and groundwater recharge, irrigation, growth dynamics of soybean plants, and yield. We used the Logistic regression model to simulate the dynamics of soybean growth indices, including plant height, leaf area index, and dry matter accumulation. The results showed that compared with D1 treatment, the amount of groundwater recharge under D2, D3, and D4 treatments decreased by 81.1%, 96.8%, 97.5% and 80.7%, 96.7%, 97.3% in the two years, respectively. The groundwater in D1 treatment could meet water needs of soybean throughout the whole growth period, except that irrigation was needed in the sowing stage. The amount of irrigation under D1 treatment was decreased by 91.7%, 93.0%, 94.2%, and 90.9%, 92.9%, 94.0% in the two years, respectively, compared with D2, D3, D4 treatments. Among the four treatments, D1 treatment took the shortest time for entering the rapid growth stage and reach the maximum growth rate, which had the highest maximum growth rate. At the mature stage of soybean, the dry matter distribution ratio of stem in D1 treatment was the highest. D1 treatment promoted the translocation of post-flowering assimilates in soybean, and its post-flowering assimilate contribution to seeds increased by 15.5%, 16.2%, 32.6% and 45.5%, 48.7%, 63.3% in the two years, respectively, compared with D2, D3, D4 treatments. D1 treatment had the highest plant height, leaf area index, and dry matter accumulation, follo-wed by D4 treatment, while D3 treatment had the lowest. Soybean yield, number of pods per plant, number of grains per plant, and 100-grain weight all decreased and then increased with increasing groundwater depth, following an order of D1>D4>D2>D3. Soybean yield was significantly positively correlated with groundwater recharge, which was positively correlated with plant height, leaf area index, and dry matter accumulation. Our results indicated that the D1 treatment with adequate groundwater recharge increased plant height, leaf area index, and dry matter accumulation, coordinated the distribution and translocation of dry matter among all plant parts in the late soybean growth period, and ultimately achieved the highest yield. When groundwater depth was deep (D4), groundwater recharge was small. In such case, the growth and development status and yield of soybean could also reach a high level if there was sufficient water supply.

Long-term outcomes and potential mechanisms of offspring exposed to intrauterine hyperglycemia.

Diabetes mellitus during pregnancy, which can be classified into pregestational diabetes and gestational diabetes, has become much more prevalent worldwide. Maternal diabetes fosters an intrauterine abnormal environment for fetus, which not only influences pregnancy outcomes, but also leads to fetal anomaly and development of diseases in later life, such as metabolic and cardiovascular diseases, neuropsychiatric outcomes, reproduction malformation, and immune dysfunction. The underlying mechanisms are comprehensive and ambiguous, which mainly focus on microbiota, inflammation, reactive oxygen species, cell viability, and epigenetics. This review concluded with the influence of intrauterine hyperglycemia on fetal structure development and organ function on later life and outlined potential mechanisms that underpin the development of diseases in adulthood. Maternal diabetes leaves an effect that continues generations after generations through gametes, thus more attention should be paid to the prevention and treatment of diabetes to rescue the pathological attacks of maternal diabetes from the offspring.

Virtual reality training improves accommodative facility and accommodative range.

AIM: To evaluate the effects of virtual reality (VR) training on different parameters of vision. METHODS: Sixty individuals ranged 18-60 years old with asthenopia were randomly divided into short-term (n=40) and long-term (n=20) treatment groups. They were given a specially designed VR training device only once for 15min or 3-4 times a day for 15min each time for 1mo. The visual acuity, spherical equivalent, accommodative range, accommodative facility, pupil size, and visual fatigue were evaluated before (control) and after VR training. RESULTS: The visual acuity, accommodative range, and accommodative facility increased in subjects of the short-term treatment group, whereas their pupil size contracted significantly. No significant changes in spherical equivalent and visual fatigue were observed. The changes in distant vision and corrected visual acuity were positively correlated with those in pupil size, but not with spherical equivalent. The accommodative range and accommodative facility improved significantly in subjects of the long-term treatment group. No significant changes in visual acuity, spherical equivalent, pupil size, and visual fatigue were noted. CONCLUSION: VR training can improve the accommodative range and accommodative facility of human eyes. Although short-term VR training can transiently improve vision, which probably due to bright light adaptation, there is no evidence that it can improve myopia.

Case Report: Multiple Ocular Manifestations Assisted in the Diagnosis of Systemic Sarcoidosis.

SIGNIFICANCE: Sarcoidosis is a variable, multisystem granulomatous disease, which can affect many organs including the lungs, lymph nodes, and eyes. It is difficult to differentiate sarcoidosis and tuberculosis because of their similar clinical and pathological features. PURPOSE: This study aimed to describe a sarcoidosis case with typical ocular and systemic manifestations combined with suspected tuberculosis infection. CASE REPORT: A 30-year-old Chinese man, initially diagnosed with tuberculosis, presented with typical ocular sarcoidosis during antituberculosis therapy. The ocular surface, anterior chamber, anterior chamber angle, ciliary body, vitreous, optic disc, and lacrimal gland of the patient all exhibited manifestations of sarcoidosis, although optic disc involvement has rarely been reported. Typical ocular sarcoidosis manifestations and positive responses to corticosteroid therapy of the patient helped us reach the diagnosis of systemic sarcoidosis. The patient was followed up for 48 months and showed significant improvement of miliary nodules and lymph nodes in both lungs. However, the appearance of uveitis in the right eye persisted because of nonadherence to steroid treatment. CONCLUSIONS: This case shows the importance of ophthalmic evaluation in the diagnosis and management of sarcoidosis and supports a possible role of Mycobacterium tuberculosis in the pathogenesis of sarcoidosis.

Diverting colostomy is an effective and reversible option for severe hemorrhagic radiation proctopathy.

BACKGROUND: Severe chronic radiation proctopathy (CRP) is difficult to treat. AIM: To evaluate the efficacy of colostomy and stoma reversal for CRP. METHODS: To assess the efficacy of colostomy in CRP, patients with severe hemorrhagic CRP who underwent colostomy or conservative treatment were enrolled. Patients with tumor recurrence, rectal-vaginal fistula or other types of rectal fistulas, or who were lost to follow-up were excluded. Rectal bleeding, hemoglobin (Hb), endoscopic features, endo-ultrasound, rectal manometry, and magnetic resonance imaging findings were recorded. Quality of life before stoma and after closure reversal was scored with questionnaires. Anorectal functions were assessed using the CRP symptom scale, which contains the following items: Watery stool, urgency, perianal pain, tenesmus, rectal bleeding, and fecal/gas incontinence. RESULTS: A total of 738 continual CRP patients were screened. After exclusion, 14 patients in the colostomy group and 25 in the conservative group were included in the final analysis. Preoperative Hb was only 63 g/L ± 17.8 g/L in the colostomy group compared to 88.2 g/L ± 19.3 g/L (P < 0.001) in the conservative group. All 14 patients in the former group achieved complete remission of bleeding, and the colostomy was successfully reversed in 13 of 14 (93%), excepting one very old patient. The median duration of stoma was 16 (range: 9-53) mo. The Hb level increased gradually from 75 g/L at 3 mo, 99 g/L at 6 mo, and 107 g/L at 9 mo to 111 g/L at 1 year and 117 g/L at 2 years after the stoma, but no bleeding cessation or significant increase in Hb levels was observed in the conservative group. Endoscopic telangiectasia and bleeding were greatly improved. Endo-ultrasound showed decreased vascularity, and magnetic resonance imaging revealed an increasing presarcal space and thickened rectal wall. Anorectal functions and quality of life were significantly improved after stoma reversal, when compared to those before stoma creation. CONCLUSION: Diverting colostomy is a very effective method in the remission of refractory hemorrhagic CRP. Stoma can be reversed, and anorectal functions can be recovered after reversal.

Rare Mutations in AHDC1 in Patients with Obstructive Sleep Apnea.

OBJECTIVES: Obstructive sleep apnea (OSA) is a common disorder influenced by genetic and environmental factors. Mutations of AT-hook DNA-binding motif containing 1 (AHDC1) gene have been implicated which could cause rare syndromes presenting OSA. This study aims to investigate some rare mutations of AHDC1 in Chinese Han individuals with OSA. PATIENTS AND METHODS: Three hundred and seventy-five patients with OSA and one hundred and nine control individuals underwent polysomnography. A targeted sequencing experiment was taken in 100 patients with moderate-to-severe OSA, and genotyping was taken in 157 moderate-to-severe OSA and 100 control individuals. The effect of mutations was validated by the luciferase reporter assay. RESULTS: One rare missense mutation (AHDC1: p.G1484D) and two mutations (c.-88C>T; c.-781C>G) in 5'-untranslated region (UTR) of AHDC1 were identified. The rare mutation (c.-781C>G) in 5'-UTR that was identified in several patients presenting more severe clinical manifestations affects expression of AHDC1. Conclusions. Our results revealed three rare mutations of AHDC1 in patients with OSA in Chinese Hanindividuals.

Effects of continuous positive airway pressure on cardiovascular biomarkers in patients with obstructive sleep apnea: a meta-analysis of randomized controlled trials.

PURPOSE: Obstructive sleep apnea (OSA) is associated with increased levels of systemic inflammatory markers, increased arterial stiffness, and endothelial dysfunction, which may lead to increased cardiovascular risk. We aimed to quantify the effects of continuous positive airway pressure (CPAP) on cardiovascular biomarkers and to establish predictors of response to CPAP. METHODS: We searched PubMed and the Cochrane Library from inception to May 31, 2017. Randomized controlled trials (RCTs) assessing the efficacy of CPAP on high-sensitivity C-reactive protein (hs-CRP), interleukin 6 (IL-6), tumor necrosis factor- alpha (TNF-α), augmentation index (AIx), pulse wave velocity (PWV), and flow-mediated dilatation (FMD) in patients with OSA were selected by consensus. RESULTS: We included 15 RCTs comprising 1090 patients in the meta-analysis. The pooled standard mean difference (SMD) of effect of CPAP on hs-CRP was - 0.64 (95% confidence interval (CI) - 1.19 to - 0.09; P = 0.02). CPAP was associated with a reduction in AIx of 1.53% (95% CI, 0.80 to 2.26%; P < 0.001) and a significant increase in FMD of 3.96% (95% CI 1.34 to 6.59%; P = 0.003). Subgroup analyses found CPAP was likely to be more effective in improving FMD levels in severe OSA patients or patients with effective CPAP use ≥ 4 h/night. CONCLUSIONS: Among patients with OSA, CPAP improves inflammatory marker hs-CRP, arterial stiffness marker AIx, and endothelial function marker FMD. These biomarkers may provide information related to response to treatment. Future studies will need to clarify the efficacy of these biomarkers in assessing cardiovascular risk reduction among OSA treated with CPAP.

The pharmacogenomics of valproic acid.

Valproic acid is an anticonvulsant and mood-stabilizing drug used primarily in the treatment of epilepsy and bipolar disorder. Adverse effects of valproic acid are rare, but hepatotoxicity is severe in particular in those younger than 2 years old and polytherapy. During valproic acid treatment, it is difficult for prescribers to predict its individual response. Recent advances in the field of pharmacogenomics have indicated variants of candidate genes that affect valproic acid efficacy and safety. In this review, a large number of candidate genes that influence valproic acid pharmacokinetics and pharmacodynamics are discussed, including metabolic enzymes, drug transporters, neurotransmitters and drug targets. Furthermore, pharmacogenomics is an important tool not only in further understanding of interindividual variability but also to assess the therapeutic potential of such variability in drug individualization and therapeutic optimization.

Influence of PRKCH gene polymorphism on antihypertensive response to amlodipine and telmisartan.

This study aimed to evaluate the effect of PRKCH rs2230500 genetic polymorphism on efficacy of amlodipine and telmisartan for patients with hypertension. A total of 136 essential hypertension (EH) patients were treated with amlodipine (70 patients) or telmisartan (66 patients), respectively. Genetic polymorphism was genotyped by Sanger sequencing. Both baseline and post-treatment blood pressure (BP) and heart rate were measured to evaluate the influence of genetic polymorphism on the antihypertensive response. No significant difference in the absolute decrease in diastolic blood pressure (DBP),systolic blood pressure (SBP), and mean arterial pressure (MAP) was observed among PRKCH rs2230500 genotypes after 4-week amlodipine or telmisartan therapy (p > 0.05). However, when compared with carriers or GG genotype, the antihypertensive effect of PRKCH rs2230500 GA/AA carriers was superior in telmisartan treatment group. PRKCH rs2230500 gene polymorphism is significantly related to the efficiency in telmisartan therapy (p = 0.02). The PRKCH rs2230500 may influence the antihypertensive efficacy of telmisartan in Chinese EH patients, and further studies are needed to confirm these findings.

GCDFP-15, AR, and Her-2 as biomarkers for primary ductal adenocarcinoma of the lacrimal gland: a Chinese case and literature review.

PURPOSE: Primary ductal adenocarcinoma (PDA) of the lacrimal gland is a rare malignant epithelial tumor, and its clinicopathological characteristics are still unclear. This study aimed to report a novel case of PDA of the lacrimal gland in the People's Republic of China, as well as to determine its histopathological and immunohistochemical characteristics to support early diagnosis and direct further therapy. PATIENT AND METHODS: Clinical data (including ocular examination, computed tomography, magnetic resonance imaging, positron emission tomography, mammography, and serum tumor marker examination) and treatment of a 49-year-old woman with a left lacrimal gland mass, which was diagnosed as PDA of the lacrimal gland, were reported. Histopathological and immunohistochemical studies were performed. Eleven papers regarding this uncommon neoplasm were reviewed. RESULTS: Histopathologically, most of the tumor cells featured abundant granular eosinophilic cytoplasm, while few of them had a frothy appearance. The mass showed breast ductal carcinoma-like structural features, which most commonly demonstrated central necrosis, while less of these features showed cord-like infiltration. Immunohistochemically, the tumor cells were positive for GCDFP-15, CK 18 (++), AR (90%), Her-2 (+++), P53 (100%), and Ki-67 (with a proliferation index approximately 60%), while they were negative for ER, PR, P63, calponin, and CD 117. CONCLUSION: This was the first Chinese case of PDA of the lacrimal gland that had been reported. We suggested that GCDFP-15, AR, and Her-2 should be tested as biomarkers for ductal adenocarcinoma of lacrimal gland to confirm diagnosis, guide therapy, and further predict prognosis.

Investigating the relationship between UMODL1 gene polymorphisms and high myopia: a case-control study in Chinese.

BACKGROUND: The UMODL1 gene was found to be associated with high myopia in Japanese. This study aimed to investigate this gene for association with high myopia in Chinese. METHODS: Two groups of unrelated Han Chinese from Hong Kong were recruited using the same criteria: Sample Set 1 comprising 356 controls (spherical equivalent, SE, within ±1 diopter or D) and 356 cases (SE ≤ -8D), and Sample Set 2 comprising 394 controls and 526 cases. Fifty-nine tag single nucleotide polymorphisms (SNPs) were selected and genotyped for Sample Set 1. Four SNPs were followed up with Sample Set 2. Both single-marker and haplotype analyses were performed with cases defined by different SE thresholds. Secondary phenotypes were also analyzed for association with genotypes. RESULTS: Data filtering left 57 SNPs for analysis. Single-marker analysis did not reveal any significant differences between cases and controls in the initial study. However, haplotype GCT for markers rs220168-rs220170-rs11911271 showed marginal significance (empirical P = 0.076; SE ≤ -12D for cases), but could not be replicated in the follow-up study. In contrast, non-synonymous SNP rs3819142 was associated with high myopia (SE ≤ -10D) in the follow-up study, but could not be confirmed using Sample Set 1. The SNP rs2839471, positive in the original Japanese study, gave negative results in all our analyses. Exploratory analysis of secondary phenotypes indicated that allele C of rs220120 was associated with anterior chamber depth (adjusted P = 0.0460). CONCLUSIONS: Common UMODL1 polymorphisms were unlikely to be important in the genetic susceptibility to high myopia in Han Chinese.

[Inhibitory effect of ferulic acid on inflammatory response in microglia induced by lipopolysaccharides].

Ferulic acid (FA) is a natural compound that expresses antioxidant and anti-inflammatory activities. Microglial cells are innate immune cells that reside within the central nervous system (CNS). Activated microglia mediated neuronal immunity contributes to the neurodegeneration associated with Alzheimer's disease. In this study, we investigated the inhibitory effect of FA on neuroinflammation in BV-2 microglial cells induced by lipopolysaccharides (LPS). Our study showed that FA significantly suppressed the production of nitric oxide (NO), prostaglandin E2 (PGE2), interleukin-1ß (IL-1ß), and decreased induced type II nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) protein in LPS-stimulated BV-2 microglia cells in a dose dependent manner. We hypothesized that this was achieved by suppressing the protein level of Toll-like receptor 4 (TLR4).

[The inhibitory effect of luteolin on inflammation in LPS-induced microglia].

OBJECTIVE: To study the inhibitory effect of Luteolin on LPS-induced BV-2 cell. METHODS: BV-2 cells were treated with LPS (0.1 microg/mL) for inflammation model; MTT assay was used to detect the viability of BV-2 cells; Nitric oxide (NO) was detected by the method of nitric acid reductase assay; Induce type II nitric oxide synthase (iNOS) enzyme activity was determined by type of nitric oxide synthase assay;TLR4 protein expression was examined by the Western Blot analysis. RESULTS: Luteolin significantly decreased the NO production and TLR4 protein expression as well as iNOS activity in LPS-activated microglial cell. CONCLUSION: LPS induced activation of microglia lead to inflammatory response and its mechanism may be related to inhibiting TLR4 signaling pathway.