Implicating Ultrasonication and Heat-Moisture Treatments as a Green and Eco-Friendly Approach for Dual Physical Modification of Starch to Improve Its Physico-Chemical and Functional Properties.

Dual-physical modification is an eco-friendly and waste-free approach for enhancing the functionality of native starches compared with a single modification. In the present study, the individual and combined interrelating effects of hydrothermal (heat moisture (HM) with 15%, 20%, and 25% moisture) and non-thermal (ultrasonication (US) with 200, 400, and 600 power (W)) on the physical modification of (Chinese water chestnut (CWCS)) starch were studied. Furthermore, their effects on the morphology, FTIR, XRD, crystallinity, thermal, pasting, swelling power, solubility, rheological characteristics, and in vitro digestibility of native and modified starches were investigated.

Exploring the antagonistic mechanism of Bacillus atrophaeus CY1 for the biological control of potato common scab.

Streptomyces scabies is a pathogenic actinomycete that infects potato crops and commonly causes scab-like lesions on potato tubers. Screening of strains antagonistic towards S. scabies in the natural environment was performed in this study.

Coronavirus 2019 disease: Are corticosteroids the key treatment? A retrospective case-control study in Brazil.

Background: Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection is the putative cause of coronavirus disease 2019 (COVID-19), a serious disease that has severely impacted the world. Although vaccines have been developed, it will take time to inoculate the global population. Current guidelines have focused on the treatment of severe cases in hospital settings; however, a void has been created regarding appropriate measures for those in the initial stage of COVID-19 and those experiencing moderate disease severity progressing to desaturation.

Leprosy detection rate in patients under immunosuppression for the treatment of dermatological, rheumatological, and gastroenterological diseases: a systematic review of the literature and meta-analysis.

Background: Recently developed immunosuppressive drugs, especially TNF antagonists, may enhance the risk of granulomatous infections, including leprosy. We aimed to evaluate the leprosy detection rate in patients under immunosuppression due to rheumatological, dermatological and gastroenterological diseases.

Methods: We performed a systematic review of the literature by searching the PubMed, EMBASE, LILACS, Web of Science and Scielo databases through 2018.

Spontaneous expulsion of a submucosal uterine fibroid without embolization in a pre-menopausal woman.

Uterine leiomyomas are benign tumors that develop from smooth muscle tissue and are present in up to 77% of women in menacme. They are often asymptomatic but can cause pelvic pain, compression, abnormal uterine bleeding, and degeneration. We present the first case report of a perimenopausal woman who exhibited complete and spontaneous expulsion of uterine fibroids without embolization or use of medication.

An alternative approach to vaginal dilation in patients with Meyer-Rokitanski-Küster-Hauser syndrome: two case reports.

Vaginal dilation, currently considered as the first-line therapy for vaginal aplasia in patients with Mayer-Rokitansky-Küster-Hauser (MRKH) syndrome, is a safe and effective treatment that aims to create a functional neovagina. However, rigid vaginal dilators classically described in the literature usually cause physical discomfort and side effects that can lead to vaginal necrosis. Here, we present two cases of MRKH syndrome patients with vaginal agenesis whose main complaint was the inability to have sexual intercourse with their partners.

Hydrogen-bond-based protein engineering for the acidic adaptation of Bacillus acidopullulyticus pullulanase.

Pullulanase is a starch-debranching enzyme that is generally employed to efficiently break down starch for the production of high-glucose syrup. Acidic adaptation of pullulanases is of special interest. In this study, we conducted protein engineering to improve the acidic adaptation of Bacillus acidopullulyticus pullulanase (BaPul) and used a hydrogen-bond-based approach to identify promising residues that may change the deprotonation constants (pK) of the catalytic residues.

Improvement of enzymatic properties of Rhizopus oryzae α-amylase by site-saturation mutagenesis of histidine 286.

Optimal pH and ideal functioning temperature for fungal α-amylase can greatly contribute to improving enzyme efficiency in maltose-forming ability. This work aimed to improve the enzymatic properties of Rhizopus oryzae α-amylase by site-saturation mutagenesis of histidine 286. The biochemical properties of selected mutant enzymes were modified to increase their enzymatic efficiencies compared to their wild-type counterparts.

[Effect of N-terminal truncation of Bacillus acidopullulyticus pullulanase on enzyme properties and functions].

We constructed different N-terminal truncated variants based on Bacillus acidopullulyticus pullulanase 3D structure (PDB code 2WAN), and studied the effects of truncated mutation on soluble expression, enzymatic properties, and application in saccharification. Upon expression, the variants of X45 domain deletion existed as inclusion bodies, whereas deletion of CBM41 domain had an effective effect on soluble expression level. The variants that lack of CBM41 (M1), lack of X25 (M3), and lack both of CBM41 and X25 (M5) had the same optimal pH (5.

Conservative treatment and follow-up of vaginal Gartner's duct cysts: a case series.

Background: In women, during embryologic development, the paired Müllerian (paramesonephric) ducts fuse distally and develop into the uterus, cervix, and upper vagina. If the Wolffian ducts persist in vestigial form, they can lead to Gartner's cysts, mainly located in the right wall of the vagina. This is one of the few studies of Gartner's cysts with a series of consecutive cases over a long period of time who were exclusively subject to clinical observation.

The Impact of Inventory Management on Stock-Outs of Essential Drugs in Sub-Saharan Africa: Secondary Analysis of a Field Experiment in Zambia.

Objective: To characterize the impact of widespread inventory management policies on stock-outs of essential drugs in Zambia's health clinics and develop related recommendations.

Methods: Daily clinic storeroom stock levels of artemether-lumefantrine (AL) products in 2009-2010 were captured in 145 facilities through photography and manual transcription of paper forms, then used to determine historical stock-out levels and estimate demand patterns. Delivery lead-times and estimates of monthly facility accessibility were obtained through worker surveys.

Downsizing a pullulanase to a small molecule with improved soluble expression and secretion efficiency in Escherichia coli.

Background: Significant challenges, including low expression and extracellular secretion of soluble protein, are encountered in expressing and purifying Bacillus acidopullulyticus pullulanase (BaPul) in Escherichia coli.

Methods: An N-terminal domain truncation was adopted to facilitate BaPul variant expression and/or secretion.

Results: BaPul possesses a complex modular architecture that consists of CBM41-X45a-X25-X45b-CBM48-GH13.

Protein engineering of Bacillus acidopullulyticus pullulanase for enhanced thermostability using in silico data driven rational design methods.

Thermostability has been considered as a requirement in the starch processing industry to maintain high catalytic activity of pullulanase under high temperatures. Four data driven rational design methods (B-FITTER, proline theory, PoPMuSiC-2.1, and sequence consensus approach) were adopted to identify the key residue potential links with thermostability, and 39 residues of Bacillus acidopullulyticus pullulanase were chosen as mutagenesis targets.

A case of swyer syndrome associated with advanced gonadal dysgerminoma involving long survival.

Swyer syndrome is caused by abnormal sex differentiation during the embryonic period, resulting in incomplete intrauterine masculinization and undifferentiated gonads. The current case report describes a patient with Swyer syndrome associated with stage 3 gonadal dysgerminoma who has survived for 23 years. At age 18, this patient sought assistance for primary amenorrhea from the Gynecological Services Department of the University of Brasília Hospital.

Integrative investigation on breast cancer in ER, PR and HER2-defined subgroups using mRNA and miRNA expression profiling.

Exploring the molecular difference among breast cancer subtypes is of crucial importance in understanding its heterogeneity and seeking its effective clinical treatment. For this, several layers of information including immunohistochemical markers and a variety of high-throughput genomics approaches have been intensively used. Here we have explored the intrinsic differences among breast cancer subgroups defined by immunohistochemical expression (IHC) of hormone receptors ER and PR as well as human epidermal growth factor receptor 2 (HER2) using the mRNA and miRNA expression profiles of 115 tumors.

Soluble expression of pullulanase from Bacillus acidopullulyticus in Escherichia coli by tightly controlling basal expression.

Bacillus acidopullulyticus pullulanase (BaPul13A) is a widely used debranching enzyme in the starch industry. A few details have been reported on the heterologous expression of BaPul13A in Escherichia coli (E. coli).